geant4.slac.stanford.edu

6 March 2006 G4NAMU Meeting J. Perl 1

SLAC - Redwood Room6 March 2006

http://geant4.slac.stanford.edu/g4namu/

Geant4 North American Medical Users Organization - G4NAMU

6 March 2006 2G4NAMU Meeting J. Perl

Introductory InformationIntroductory Information

Emergency Information Networking Agenda Introduction to G4NAMU


Exits and Emergency Assembly PointExits and Emergency Assembly Point

We

are

Here


Welcome to Earthquake CountryWelcome to Earthquake Country Be aware of exits in your buildingBe aware of exits in your building

Speaker will indicate locations for this meetingSpeaker will indicate locations for this meeting Fire or other emergency evacuationFire or other emergency evacuation

Follow building residents out of building to the assembly areaFollow building residents out of building to the assembly area EarthquakeEarthquake

Remain in building: Duck, cover, and hold position until shaking stopsRemain in building: Duck, cover, and hold position until shaking stops Evacuate building to assembly area outside (follow others)Evacuate building to assembly area outside (follow others) Stay away from windows, downed power linesStay away from windows, downed power lines

In the event of an emergencyIn the event of an emergency Dial 9-911 from a SLAC phone; orDial 9-911 from a SLAC phone; or Dial 911 from your cellular phoneDial 911 from your cellular phone Provide SLAC address (2575 Sand Hill Road, Menlo Park, CA; cross Provide SLAC address (2575 Sand Hill Road, Menlo Park, CA; cross

street Saga Lane) and your building/room number.street Saga Lane) and your building/room number.


NetworkingNetworking SecuritySecurity

Anyone near the wireless access points could Anyone near the wireless access points could ssniffniff the network and anyone the network and anyone with a laptop configured for wireless can connect to the visitor network.with a laptop configured for wireless can connect to the visitor network.

To protect any information you send across the network (especially passwords) To protect any information you send across the network (especially passwords) you should use appropriate encryption technology such as SSH, SSL, or one-you should use appropriate encryption technology such as SSH, SSL, or one-time password authentication.time password authentication.

Recommended Settings and InformationRecommended Settings and Information Wireless adapter card: 802.11b or 802.11gWireless adapter card: 802.11b or 802.11g Network configuration:Network configuration: DHCPDHCP SSID:SSID: Set to visitorSet to visitor or to allow any valueor to allow any value Network Type: Set to infrastructureNetwork Type: Set to infrastructure Open access: Open access: NNo WEP, no data encryption, no registration or authenticationo WEP, no data encryption, no registration or authentication

Some Problem Areas To AvoidSome Problem Areas To Avoid Bridging must be turned off or disabledBridging must be turned off or disabled

for WXP see Network Connections, right click on the wireless adapter.for WXP see Network Connections, right click on the wireless adapter.Check for bridging.Check for bridging.

Do not set the Network Type to Do not set the Network Type to AAd hocd hoc for WXP see Network Connections,for WXP see Network Connections,

right click on wireless adapter>Properties>Wireless Networks tab>Advanced.right click on wireless adapter>Properties>Wireless Networks tab>Advanced.Select Select AAccess point (infrastructure) networks onlyccess point (infrastructure) networks only

Mac laptops - Turn off AirPort settingMac laptops - Turn off AirPort setting System Preferences>Network> Show: AirPort.System Preferences>Network> Show: AirPort.

EEnsure thatnsure that AAllow this computer to create networksllow this computer to create networks is not checkedis not checked


Agenda (morning)Agenda (morning)


Agenda (afternoon)Agenda (afternoon)


Coffee Breaks and LunchesCoffee Breaks and Lunches

Because we have charged no registration fee, we are unable to provide coffee or lunches, but breaks have been made long enough to allow you to take a short walk to get it yourself.

SLAC Cafeteria across the main lawn Starbucks, Erik’s Deli, Castillo’s Mexican and other restaurants a

5 minute walk down Sand Hill Road to the Sharon Heights shopping center

Coffee Breaks are 30 minutes Lunch Breaks are an hour and a half


Geant4 Experts in Attendance TodayGeant4 Experts in Attendance Today

The following Geant4 experts are in attendance today, and mostof them will be available throughout the week. They would be very happy to discuss any individual questions that you might have.

Makoto Asai - Run , Event, Detector Response, Geometry Tsukasa Aso - Detector Response, Scoring, Biasing Sebastien Incerti - Low Energy EM Tatsumi Koi - Hadronics Wilko Kroeger - Installation Michel Maire - Standard EM Joseph Perl - Visualization Takashi Sasaki - Tracking Jane Tinslay - Visualization, Biasing Dennis Wright - Hadronics, Documentation


Introduction to G4NAMUIntroduction to G4NAMU


Geant4 North American Medical Users Organization - G4NAMU

•Bring this community together to Bring this community together to share issues and advice, to share issues and advice, to develop regional collaboration and develop regional collaboration and to communicate as a group to the to communicate as a group to the Geant4 developers.Geant4 developers.

•Current membership includes 70 Current membership includes 70 members from 32 institutions members from 32 institutions throughout Canada and the United throughout Canada and the United StatesStates

Launched in May of 2005 to provide a meeting place for the rapidly growing Launched in May of 2005 to provide a meeting place for the rapidly growing Geant4 medical user community of North AmericaGeant4 medical user community of North America

http://geant4.slac.stanford.edu/g4http://geant4.slac.stanford.edu/g4namu/namu/


MembershipG4NAMU's current membership includes 70 members from 32 institutions G4NAMU's current membership includes 70 members from 32 institutions throughout Canada and the United States.throughout Canada and the United States.

Current subscribers to the mailing list (page 1 of 3):Current subscribers to the mailing list (page 1 of 3):

SLACSLAC: Joseph Perl, Makoto Asai, Jeremy McCormick, Dennis Wright, Abner Soffer: Joseph Perl, Makoto Asai, Jeremy McCormick, Dennis Wright, Abner Soffer

Harvard & Mass GeneralHarvard & Mass General: Harald Paganetti, Xing-Qi Lu , Christina Jarlskog, Joao : Harald Paganetti, Xing-Qi Lu , Christina Jarlskog, Joao SecoSeco

UCSFUCSF: Bruce Faddegon, Inder Daftari, Philippe Després : Bruce Faddegon, Inder Daftari, Philippe Després

ULavalULaval: Jean-François Carrier, Luc Beaulieu, Louis Archambault, Vincent Hubert : Jean-François Carrier, Luc Beaulieu, Louis Archambault, Vincent Hubert TremblayTremblay

CHUQCHUQ: Luc Gingras: Luc Gingras

UPennUPenn: Steven Avery , Dickson Goulart, Jim McDonough: Steven Avery , Dickson Goulart, Jim McDonough

StanfordStanford: Todd Pawlicki, Gary Luxton, Lei Xing: Todd Pawlicki, Gary Luxton, Lei Xing

Louisiana State UniversityLouisiana State University: Blair Smith: Blair Smith

Fox ChaseFox Chase: Charlie Ma, Jiajin Fan, Jinsheng Li: Charlie Ma, Jiajin Fan, Jinsheng Li

(continued on next slide…)(continued on next slide…)


Membership (continued)Current subscribers to the mailing list (continued):Current subscribers to the mailing list (continued):

McGillMcGill: Emily Poon, Frank Verhaegen, Jan Seuntjens: Emily Poon, Frank Verhaegen, Jan Seuntjens

TriumfTriumf: Peter Gumplinger, Frederick Jones: Peter Gumplinger, Frederick Jones

Memorial Sloan-KetteringMemorial Sloan-Kettering: C. Ross Schmidtlein, Assen Kirov, Sadek Nehmeh, : C. Ross Schmidtlein, Assen Kirov, Sadek Nehmeh, Christopher DanfordChristopher Danford

Johns HopkinsJohns Hopkins: Ben Tsui, Jingyan Xu, Eric Frey, Mikhail Shilov, Yong Du: Ben Tsui, Jingyan Xu, Eric Frey, Mikhail Shilov, Yong Du

University of ArkansasUniversity of Arkansas: Hongyu Jiang, Xuejun Weng, Yulong Yan: Hongyu Jiang, Xuejun Weng, Yulong Yan

Jefferson LabJefferson Lab: Paul Gueye, Stan Majewski, Mark Smith, David Hamlette,: Paul Gueye, Stan Majewski, Mark Smith, David Hamlette,Michael Epps, Marion MacCormicMichael Epps, Marion MacCormic

Advanced Laser Light SourceAdvanced Laser Light Source: Jean-Claude Kieffer, Jean-Philippe Moreau: Jean-Claude Kieffer, Jean-Philippe Moreau

University of Wisconsin – MadisonUniversity of Wisconsin – Madison: Hazim A Jaradat: Hazim A Jaradat

INRSINRS: Francois Vidal, Sylvain Fourmaux, Ludovic Lecherbourg, Rémy Toth : Francois Vidal, Sylvain Fourmaux, Ludovic Lecherbourg, Rémy Toth

Université de SherbrookeUniversité de Sherbrooke: Daniel Houde: Daniel Houde

(continued on next slide…)(continued on next slide…)


Membership (continued)Current subscribers to the mailing list (continued):Current subscribers to the mailing list (continued):

University of AlbertaUniversity of Alberta: Robert Fedosejev, Craig Unick: Robert Fedosejev, Craig Unick

Walter Reed Army Medical CenterWalter Reed Army Medical Center: Dan Fry: Dan Fry

Texas A&MTexas A&M: Yong Chen: Yong Chen

University of WashingtonUniversity of Washington: Ruth Schmitz: Ruth Schmitz

Hopital Maisonneuve-RosemontHopital Maisonneuve-Rosemont: Brigitte Reniers: Brigitte Reniers

University of MinnesotaUniversity of Minnesota: Lihong Qin: Lihong Qin

Xoft Inc.Xoft Inc.: Steve Axelrod: Steve Axelrod

Rensselaer PolytechnicRensselaer Polytechnic: Bryan Bednarz: Bryan Bednarz

Giorgia TechGiorgia Tech: Ioannis Sechopoulos: Ioannis Sechopoulos

University of ArizonaUniversity of Arizona: Don Wilson: Don Wilson

EXELAR Medical Corp & Rush UnivEXELAR Medical Corp & Rush Univ: Gocha Khelashvili: Gocha Khelashvili

University of FloridaUniversity of Florida: Yuxin Feng: Yuxin Feng


G4NAMU within the World Geant4 G4NAMU within the World Geant4 Collaboration Collaboration

Of course all Geant4 users are part of a world wide Of course all Geant4 users are part of a world wide community.community. Medical Applications forum and other user forums are available Medical Applications forum and other user forums are available

for discussion and exchange, as well as other Geant4 for discussion and exchange, as well as other Geant4 workshops and meetings.workshops and meetings.

But regional efforts also have a role.But regional efforts also have a role. In Europe, many efforts have been organized, particularly In Europe, many efforts have been organized, particularly

through Maria Grazia Pia of INFNthrough Maria Grazia Pia of INFN In Japan, many efforts has been organized through Takashi In Japan, many efforts has been organized through Takashi

Sasaki of KEK (including carbon beams, parallel computing)Sasaki of KEK (including carbon beams, parallel computing) In North America, there has been no similar effort at regional In North America, there has been no similar effort at regional

organizationorganization


G4NAMU as Regional VoiceG4NAMU as Regional Voice

G4NAMU can serve as voice of the North American G4NAMU can serve as voice of the North American Geant4 Medical User communityGeant4 Medical User community Organize regional workshops or tutorialsOrganize regional workshops or tutorials Foster nearby collaborationsFoster nearby collaborations Speak with a collective voice to regional funding agenciesSpeak with a collective voice to regional funding agencies Meet regional certification needsMeet regional certification needs

Last year the American Nuclear Society (ANS) recognized the Last year the American Nuclear Society (ANS) recognized the formation of a Computational Medical Physics Working Group formation of a Computational Medical Physics Working Group (CMPWG). CMPWG will be hosted by three divisions of ANS - (CMPWG). CMPWG will be hosted by three divisions of ANS - Mathematics and Computations (M&C), Biology and Medicine Mathematics and Computations (M&C), Biology and Medicine (BMD), Radiation Protection and Shielding (RPSD).(BMD), Radiation Protection and Shielding (RPSD).

CMPWG has become involved in benchmarking codes for CMPWG has become involved in benchmarking codes for Medical Physics applications.Medical Physics applications.


How Does G4NAMU WorkHow Does G4NAMU Work We've agreed to use a mailing list.We've agreed to use a mailing list.

[email protected]@slac.stanford.edu

The list is lightly moderated just to maintain focus and prevent spam.The list is lightly moderated just to maintain focus and prevent spam.

To join the list, send mail to [email protected] join the list, send mail to [email protected].

We will have periodic meetings and will try, as we have We will have periodic meetings and will try, as we have today, to take advantage of existing meetings.today, to take advantage of existing meetings.

We can go beyond this:We can go beyond this: Provide workshops or tutorialsProvide workshops or tutorials

Develop additional Geant4 examplesDevelop additional Geant4 examples

Certify certain parts of the code for use in our communitiesCertify certain parts of the code for use in our communities

Collect requirements for Geant4 developersCollect requirements for Geant4 developers


First In-Person MeetingFirst In-Person Meeting Side meeting at the annual meeting of the American Association Side meeting at the annual meeting of the American Association

of Physicists in Medicine (AAPM) at Seattle in July 2005. of Physicists in Medicine (AAPM) at Seattle in July 2005. Strong interest (over 40 attendees)Strong interest (over 40 attendees)

Organized byOrganized by Steven Avery - University of PennsylvaniaSteven Avery - University of Pennsylvania

Paul Gueye - Hampton University/JLABPaul Gueye - Hampton University/JLAB

Harald Paganetti - Harvard/ Massachusetts GeneralHarald Paganetti - Harvard/ Massachusetts General

Joseph Perl - SLACJoseph Perl - SLAC

Many next step suggested at the meeting (see following page).Many next step suggested at the meeting (see following page).

Notes at: http://geant4.slac.stanford.edu/g4namu/aapm2005Notes at: http://geant4.slac.stanford.edu/g4namu/aapm2005

Strong interest in medical tutorials in US:Strong interest in medical tutorials in US: Geant4 Tutorial with Medical, Space and High Energy examples to be Geant4 Tutorial with Medical, Space and High Energy examples to be

held at SLAC March 7-11 2006held at SLAC March 7-11 2006

G4NAMU side meeting to be either March 6 or March 12.G4NAMU side meeting to be either March 6 or March 12.

Another tutorial to be held at JLab, Virginia, late April or May 2006Another tutorial to be held at JLab, Virginia, late April or May 2006


Some Next StepsSome Next Steps Improve communication between Geant4 developers and the medical physics Improve communication between Geant4 developers and the medical physics

community.community. Collect requirements for Geant4 developers.Collect requirements for Geant4 developers. Validation:Validation:

Clarify what studies have been done, what results have been found, what studies still Clarify what studies have been done, what results have been found, what studies still need to be done.need to be done.

Perform additional beam tests as needed.Perform additional beam tests as needed. Compare cross sections used by Geant4 with those used by other MC codes in Compare cross sections used by Geant4 with those used by other MC codes in

Medicine.Medicine.

Calculation speed:Calculation speed: Understand issues.Understand issues. Suggest and validate variance reduction methods.Suggest and validate variance reduction methods.

Create additional medical examples.Create additional medical examples. Continue discussion on the mailing list. Invite additional colleagues to the list.Continue discussion on the mailing list. Invite additional colleagues to the list. Maintain Relationships with Relevant North American Professional Organizations:Maintain Relationships with Relevant North American Professional Organizations:

ANS Computational Medical Physics Working Group (CMPWG). They have asked ANS Computational Medical Physics Working Group (CMPWG). They have asked Harald Paganetti to represent Geant4.Harald Paganetti to represent Geant4.

AAPM Task Group No. 105: "Guidance report on clinical implementation of the Monte AAPM Task Group No. 105: "Guidance report on clinical implementation of the Monte Carlo method in external beam radiation therapy treatment planning.”Carlo method in external beam radiation therapy treatment planning.”

Work on ways to improve funding for Geant4 medical work in North America.Work on ways to improve funding for Geant4 medical work in North America.


Some Next StepsSome Next Steps Develop the G4NAMU web site:Develop the G4NAMU web site:

Should answer question: Why would I use Geant4 for medical physics?Should answer question: Why would I use Geant4 for medical physics? Clarify which physics lists are recommended for which medical problems.Clarify which physics lists are recommended for which medical problems. Provide a medical physicist's overview of each Geant4 release's release notes. I.e., Provide a medical physicist's overview of each Geant4 release's release notes. I.e.,

what should a medical physicist know about this new release.what should a medical physicist know about this new release. Collect references to papers.Collect references to papers.

For those papers that are publicly available, include actual copies of the papers.For those papers that are publicly available, include actual copies of the papers. For those papers that are restricted by subscriber permissions, include abstract For those papers that are restricted by subscriber permissions, include abstract

and then link to actual publication (which not all viewers will be able to actually and then link to actual publication (which not all viewers will be able to actually read).read).

Show Geant4 results in three sections:Show Geant4 results in three sections:

n Where is Geant4 known to give good results? Link to appropriate publications.Where is Geant4 known to give good results? Link to appropriate publications.

n Where is Geant4 known to give poor results? Link to appropriate publications. Where is Geant4 known to give poor results? Link to appropriate publications. Include discussion known problems and of what is planned to improve these Include discussion known problems and of what is planned to improve these issues.issues.

n Where are Geant4 results unknown? I.e., what additional tests do we know we Where are Geant4 results unknown? I.e., what additional tests do we know we need to perform?need to perform?

Show member names by work area.Show member names by work area. Paul Gueye has created a newer version of the web site, soon to be unveiled.Paul Gueye has created a newer version of the web site, soon to be unveiled.

Hold tutorials aimed at medical users.Hold tutorials aimed at medical users. This week here at SLACThis week here at SLAC Jefferson Lab, May 22-26, 2006, registration to open later this weekJefferson Lab, May 22-26, 2006, registration to open later this week Smaller tutorials annually as part of AAPM annual meetingSmaller tutorials annually as part of AAPM annual meeting

Documents

geant4.slac.stanford.edu