February 7th, 2018

• Attended:

• Just a reminder: We will have PKI2018 Workshop, Feb 14-15 [1]

• KL Flux Monitor: Mikhail sent KL Flux Memo to Eugene. The weight of the device is 1.1 ton.[2].

• CFS: Tanja posted a draft of the NPS/CPS 2018 Action Items: [3].

• SC & cryotarget: A week ago, Justin, Eric, Chris, and Igor met and discuss a SC and LH2/LD2 cryotarget configuration. The bottom line is that the cryotarget will have 6 cm in diameter and 40 cm length and it will fit a SC scattering chamber. The cryotarget location is in the center of the GlueX detector.There is a minor question regarding a production angle for different particles for different reactions which somehow depends on the cryotarget location.

• Mikhail's calculations for KLp-->K+n (K+ production angle in CM vs energy) [4] (left: all, right cos(Theta)> -0.95). Kaons from the center of the cryotarget will be detected up to 126 deg in CM.

• KL beam: Ilja made MC for KL beam and he promised to provide a geometrical profile (size and angle) of KL beam on the cryotarget. The size of the KL beam is much broader than the size of the diameter of the cryotarget.

• Final design of Be-target assembly [5].The weight of the Be-target assembly is 14.5 ton. Preliminary results show that we are under RadCon control [6]. We are waiting for Tim and his thoughts for a cooling system.